1027 lines
19 KiB
C++
1027 lines
19 KiB
C++
//-----------------------------------------------------------------------------
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//
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// $Logfile:: /EF2/Code/DLLs/game/archive.cpp $
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// $Revision:: 12 $
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// $Author:: Singlis $
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// $Date:: 9/26/03 2:35p $
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//
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// Copyright (C) 1997 by Ritual Entertainment, Inc.
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// All rights reserved.
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//
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// This source is may not be distributed and/or modified without
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// expressly written permission by Ritual Entertainment, Inc.
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//
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//
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// DESCRIPTION:
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// Class for archiving objects
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//
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#include "_pch_cpp.h"
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#include "archive.h"
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enum
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{
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ARC_NULL, ARC_Vector, ARC_Vec3, ARC_Vec4, ARC_Integer, ARC_Unsigned, ARC_Byte, ARC_Char, ARC_Short, ARC_UnsignedShort,
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ARC_Float, ARC_Double, ARC_Boolean, ARC_String, ARC_Raw, ARC_Object, ARC_ObjectPointer,
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ARC_SafePointer, ARC_Event, ARC_EventPointer, ARC_Quat, ARC_Entity, ARC_Bool,
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ARC_NUMTYPES
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};
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static const char *typenames[] =
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{
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"NULL", "vector", "vec3", "vec4", "int", "unsigned", "byte", "char", "short", "unsigned short",
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"float", "double", "qboolean", "string", "raw data", "object", "objectpointer",
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"safepointer", "event", "eventpointer", "quaternion", "entity", "bool"
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};
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#define ArchiveHeader ( *( int * )"EF2" )
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#define ArchiveVersion 2 // This must be changed any time the format changes!
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#define ArchiveInfo "EF2 Archive Version 2" // This must be changed any time the format changes!
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CLASS_DECLARATION( Class, FileRead, NULL )
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{
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{ NULL, NULL }
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};
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FileRead::FileRead()
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{
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length = 0;
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buffer = NULL;
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pos = 0;
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}
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FileRead::~FileRead()
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{
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Close();
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}
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void FileRead::Close( void )
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{
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if ( buffer )
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{
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gi.Free( ( void * )buffer );
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buffer = NULL;
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}
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filename = "";
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length = 0;
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pos = 0;
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}
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const char *FileRead::Filename( void )
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{
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return filename.c_str();
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}
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size_t FileRead::Length( void )
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{
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return length;
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}
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size_t FileRead::Pos( void )
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{
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return pos - buffer;
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}
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qboolean FileRead::Seek( size_t newpos )
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{
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if ( !buffer )
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{
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return false;
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}
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if ( newpos > length )
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{
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return false;
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}
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pos = buffer + newpos;
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return true;
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}
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qboolean FileRead::Open( const char *name )
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{
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byte *tempbuf;
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assert( name );
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assert( !buffer );
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Close();
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if ( !name )
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{
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return false;
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}
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length = gi.FS_ReadFile( name, ( void ** )&tempbuf, true );
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if ( length == ( size_t )( -1 ) )
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{
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return false;
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}
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// create our own space
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buffer = ( byte * )gi.Malloc( length );
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// copy the file over to our space
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memcpy( buffer, tempbuf, length );
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// free the file
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gi.FS_FreeFile( tempbuf );
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filename = name;
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pos = buffer;
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return true;
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}
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qboolean FileRead::Read( void *dest, size_t size )
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{
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assert( dest );
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assert( buffer );
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assert( pos );
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if ( !dest )
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{
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return false;
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}
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if ( size == 0 )
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{
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return false;
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}
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if ( ( pos + size ) > ( buffer + length ) )
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{
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return false;
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}
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memcpy( dest, pos, size );
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pos += size;
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return true;
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}
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CLASS_DECLARATION( Class, Archiver, NULL )
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{
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{ NULL, NULL }
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};
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Archiver::Archiver()
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{
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file = 0;
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fileerror = false;
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harderror = true;
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archivemode = ARCHIVE_READ;
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numclassespos = 0;
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assert( ( sizeof( typenames ) / sizeof( typenames[ 0 ] ) ) == ARC_NUMTYPES );
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}
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Archiver::~Archiver()
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{
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if ( file )
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{
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Close();
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}
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readfile.Close();
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}
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void Archiver::FileError( const char *fmt, ... )
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{
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va_list argptr;
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char text[ 1024 ];
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va_start( argptr, fmt );
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vsprintf( text, fmt, argptr );
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va_end( argptr );
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fileerror = true;
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Close();
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if ( archivemode == ARCHIVE_READ )
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{
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if ( harderror )
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{
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gi.Error( ERR_DROP, "Error while loading %s : %s\n", filename.c_str(), text );
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}
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else
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{
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gi.WPrintf( "Error while loading %s : %s\n", filename.c_str(), text );
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}
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}
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else
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{
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if ( harderror )
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{
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gi.Error( ERR_DROP, "Error while writing to %s : %s\n", filename.c_str(), text );
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}
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else
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{
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gi.WPrintf( "Error while writing to %s : %s\n", filename.c_str(), text );
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}
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}
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}
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void Archiver::Close( void )
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{
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if ( file )
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{
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if ( archivemode == ARCHIVE_WRITE )
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{
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int numobjects;
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// write out the number of classpointers
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gi.FS_FSeek( file, numclassespos, FS_SEEK_SET );
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numclassespos = gi.FS_FTell( file );
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numobjects = classpointerList.NumObjects();
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ArchiveInteger( &numobjects );
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}
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gi.FS_FCloseFile( file );
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file = 0;
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}
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readfile.Close();
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if ( archivemode == ARCHIVE_READ )
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{
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int i, num;
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Class * classptr;
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pointer_fixup_t *fixup;
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num = fixupList.NumObjects();
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for( i = 1; i <= num; i++ )
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{
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fixup = fixupList.ObjectAt( i );
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classptr = classpointerList.ObjectAt( fixup->index );
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// Make sure the ptr isn't screwed up
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assert( !( ( classptr == NULL ) && ( fixup->index != ARCHIVE_NULL_POINTER ) ) );
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if ( fixup->type == pointer_fixup_normal )
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{
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Class ** fixupptr;
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fixupptr = ( Class ** )fixup->ptr;
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*fixupptr = classptr;
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}
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else if ( fixup->type == pointer_fixup_safe )
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{
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SafePtrBase * fixupptr;
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fixupptr = ( SafePtrBase * )fixup->ptr;
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fixupptr->InitSafePtr( classptr );
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}
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delete fixup;
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}
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fixupList.FreeObjectList();
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classpointerList.FreeObjectList();
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}
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}
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/****************************************************************************************
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File Read/Write functions
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*****************************************************************************************/
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qboolean Archiver::Read( const char *name, qboolean file_harderror )
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{
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unsigned header;
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unsigned version;
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str info;
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int num;
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int i;
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Class *null;
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harderror = file_harderror;
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assert( name );
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if ( !name )
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{
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FileError( "NULL pointer for filename in Archiver::Read.\n" );
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return false;
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}
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fileerror = false;
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archivemode = ARCHIVE_READ;
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filename = name;
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if ( !readfile.Open( filename.c_str() ) )
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{
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if ( file_harderror )
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{
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FileError( "Couldn't open file." );
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}
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return false;
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}
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ArchiveUnsigned( &header );
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if ( header != ArchiveHeader )
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{
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readfile.Close();
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FileError( "Not a valid archive." );
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return false;
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}
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ArchiveUnsigned( &version );
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if ( version > ArchiveVersion )
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{
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readfile.Close();
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FileError( "Archive is from version %.2f. Check http://www.ritual.com for an update.", version );
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return false;
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}
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if ( version < ArchiveVersion )
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{
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readfile.Close();
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FileError( "Archive is out of date." );
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return false;
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}
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ArchiveString( &info );
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gi.DPrintf( "%s\n", info.c_str() );
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// setup out class pointers
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ArchiveInteger( &num );
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classpointerList.Resize( num );
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null = NULL;
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for( i = 1; i <= num; i++ )
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{
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classpointerList.AddObject( null );
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}
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return true;
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}
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qboolean Archiver::Create( const char *name, qboolean file_harderror )
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{
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unsigned header;
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unsigned version;
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str info;
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int numZero = 0;
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harderror = file_harderror;
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assert( name );
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if ( !name )
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{
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FileError( "NULL pointer for filename in Archiver::Create.\n" );
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return false;
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}
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fileerror = false;
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archivemode = ARCHIVE_WRITE;
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filename = name;
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file = gi.FS_FOpenFileWrite( filename.c_str() );
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if ( !file )
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{
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FileError( "Couldn't open file." );
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return false;
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}
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header = ArchiveHeader;
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ArchiveUnsigned( &header );
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version = ArchiveVersion;
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ArchiveUnsigned( &version );
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info = ArchiveInfo;
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ArchiveString( &info );
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numclassespos = gi.FS_FTell( file );
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ArchiveInteger( &numZero );
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return true;
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}
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inline void Archiver::CheckRead( void )
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{
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assert( archivemode == ARCHIVE_READ );
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if ( !fileerror && ( archivemode != ARCHIVE_READ ) )
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{
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FileError( "File read during a write operation." );
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}
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}
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inline void Archiver::CheckWrite( void )
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{
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assert( archivemode == ARCHIVE_WRITE );
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if ( !fileerror && ( archivemode != ARCHIVE_WRITE ) )
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{
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FileError( "File write during a read operation." );
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}
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}
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inline size_t Archiver::ReadSize( void )
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{
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size_t s;
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s = 0;
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if ( !fileerror )
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{
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readfile.Read( &s, sizeof( s ) );
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}
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return s;
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}
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inline void Archiver::CheckSize( int type, size_t size )
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{
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size_t s;
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if ( !fileerror )
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{
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s = ReadSize();
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if ( size != s )
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{
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FileError( "Invalid data size of %d on %s.", s, typenames[ type ] );
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}
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}
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}
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inline void Archiver::WriteSize( size_t size )
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{
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gi.FS_Write( &size, sizeof( size ), file );
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}
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inline int Archiver::ReadType( void )
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{
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int t;
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if ( !fileerror )
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{
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readfile.Read( &t, sizeof( t ) );
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return t;
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}
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return ARC_NULL;
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}
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inline void Archiver::WriteType( int type )
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{
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gi.FS_Write( &type, sizeof( type ), file );
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}
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inline void Archiver::CheckType( int type )
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{
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int t;
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assert( ( type >= 0 ) && ( type < ARC_NUMTYPES ) );
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if ( !fileerror )
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{
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t = ReadType();
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if ( t != type )
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{
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FileError( "Expecting %s", typenames[ type ] );
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}
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}
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}
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/****************************************************************************************
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File Archive functions
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*****************************************************************************************/
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//#define ARCHIVE_USE_TYPES 1
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inline void Archiver::ArchiveData( int type, void *data, size_t size )
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{
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if ( archivemode == ARCHIVE_READ )
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{
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#ifndef NDEBUG
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CheckRead();
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#endif
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#ifdef ARCHIVE_USE_TYPES
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CheckType( type );
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#endif
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if ( !fileerror && size )
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{
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readfile.Read( data, size );
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}
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}
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else
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{
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#ifndef NDEBUG
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CheckWrite();
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#endif
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#ifdef ARCHIVE_USE_TYPES
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WriteType( type );
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#endif
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if ( !fileerror && size )
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{
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gi.FS_Write( data, size, file );
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}
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}
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}
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#define ARCHIVE( func, type ) \
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void Archiver::Archive##func \
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( \
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type * v \
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) \
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\
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{ \
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ArchiveData( ARC_##func, v, sizeof( type ) ); \
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}
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ARCHIVE( Vector, Vector );
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ARCHIVE( Integer, int );
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ARCHIVE( Unsigned, unsigned );
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ARCHIVE( Byte, byte );
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ARCHIVE( Char, char );
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ARCHIVE( Short, short );
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ARCHIVE( UnsignedShort, unsigned short );
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ARCHIVE( Float, float );
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ARCHIVE( Double, double );
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ARCHIVE( Boolean, qboolean );
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ARCHIVE( Quat, Quat );
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ARCHIVE( Bool, bool );
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void Archiver::ArchiveVec3( vec3_t vec )
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{
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ArchiveData( ARC_Vec3, vec, sizeof( vec3_t ) );
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}
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void Archiver::ArchiveVec4( vec4_t vec )
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{
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ArchiveData( ARC_Vec4, vec, sizeof( vec4_t ) );
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}
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void Archiver::ArchiveObjectPointer( Class ** ptr )
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{
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int index = 0;
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if ( archivemode == ARCHIVE_READ )
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{
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pointer_fixup_t *fixup;
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ArchiveData( ARC_ObjectPointer, &index, sizeof( index ) );
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// Check for a NULL pointer
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assert( ptr );
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if ( !ptr )
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{
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FileError( "NULL pointer in ArchiveObjectPointer." );
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}
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//
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// see if the variable was NULL
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//
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if ( index == ARCHIVE_NULL_POINTER )
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{
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*ptr = NULL;
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}
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else
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{
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// init the pointer with NULL until we can fix it
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*ptr = NULL;
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fixup = new pointer_fixup_t;
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fixup->ptr = ( void ** )ptr;
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fixup->index = index;
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fixup->type = pointer_fixup_normal;
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fixupList.AddObject( fixup );
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}
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}
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else
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{
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if ( *ptr )
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{
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index = classpointerList.AddUniqueObject( *ptr );
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}
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else
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{
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index = ARCHIVE_NULL_POINTER;
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}
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ArchiveData( ARC_ObjectPointer, &index, sizeof( index ) );
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}
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}
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|
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void Archiver::ArchiveSafePointer( SafePtrBase * ptr )
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{
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int index = 0;
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if ( archivemode == ARCHIVE_READ )
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{
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pointer_fixup_t *fixup;
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ArchiveData( ARC_SafePointer, &index, sizeof( &index ) );
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// Check for a NULL pointer
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assert( ptr );
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if ( !ptr )
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{
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FileError( "NULL pointer in ReadSafePointer." );
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}
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//
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// see if the variable was NULL
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//
|
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if ( index == ARCHIVE_NULL_POINTER )
|
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{
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ptr->InitSafePtr( NULL );
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}
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else
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{
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// init the pointer with NULL until we can fix it
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ptr->InitSafePtr( NULL );
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|
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// Add new fixup
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fixup = new pointer_fixup_t;
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fixup->ptr = ( void ** )ptr;
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fixup->index = index;
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fixup->type = pointer_fixup_safe;
|
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fixupList.AddObject( fixup );
|
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}
|
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}
|
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else
|
|
{
|
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if ( ptr->Pointer() )
|
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{
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Class * obj;
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|
|
obj = ptr->Pointer();
|
|
index = classpointerList.AddUniqueObject( obj );
|
|
}
|
|
else
|
|
{
|
|
index = ARCHIVE_NULL_POINTER;
|
|
}
|
|
ArchiveData( ARC_SafePointer, &index, sizeof( index ) );
|
|
}
|
|
}
|
|
|
|
void Archiver::ArchiveEvent( Event * ev )
|
|
{
|
|
if ( archivemode == ARCHIVE_READ )
|
|
{
|
|
#ifndef NDEBUG
|
|
CheckRead();
|
|
#endif
|
|
#ifdef ARCHIVE_USE_TYPES
|
|
CheckType( ARC_Event );
|
|
#endif
|
|
|
|
if ( !fileerror )
|
|
{
|
|
ev->Archive( *this );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
#ifndef NDEBUG
|
|
CheckWrite();
|
|
#endif
|
|
#ifdef ARCHIVE_USE_TYPES
|
|
WriteType( ARC_Event );
|
|
#endif
|
|
|
|
//FIXME!!!! Make this handle null events
|
|
if ( ev == NULL )
|
|
{
|
|
NullEvent.Archive( *this );
|
|
}
|
|
else
|
|
{
|
|
ev->Archive( *this );
|
|
}
|
|
}
|
|
}
|
|
|
|
void Archiver::ArchiveEventPointer( Event ** ev )
|
|
{
|
|
int index;
|
|
|
|
if ( archivemode == ARCHIVE_READ )
|
|
{
|
|
#ifndef NDEBUG
|
|
CheckRead();
|
|
#endif
|
|
#ifdef ARCHIVE_USE_TYPES
|
|
CheckType( ARC_EventPointer );
|
|
#endif
|
|
ArchiveInteger( &index );
|
|
|
|
if ( !fileerror )
|
|
{
|
|
if ( index == ARCHIVE_POINTER_VALID )
|
|
{
|
|
*ev = new Event;
|
|
(*ev)->Archive( *this );
|
|
}
|
|
else
|
|
{
|
|
(*ev) = NULL;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
#ifndef NDEBUG
|
|
CheckWrite();
|
|
#endif
|
|
if ( *ev )
|
|
{
|
|
index = ARCHIVE_POINTER_VALID;
|
|
}
|
|
else
|
|
{
|
|
index = ARCHIVE_NULL_POINTER;
|
|
}
|
|
|
|
#ifdef ARCHIVE_USE_TYPES
|
|
WriteType( ARC_EventPointer );
|
|
#endif
|
|
|
|
ArchiveInteger( &index );
|
|
if ( *ev )
|
|
{
|
|
(*ev)->Archive( *this );
|
|
}
|
|
}
|
|
}
|
|
|
|
void Archiver::ArchiveRaw( void *data, size_t size )
|
|
{
|
|
ArchiveData( ARC_Raw, data, size );
|
|
}
|
|
|
|
void Archiver::ArchiveString( str * string )
|
|
{
|
|
if ( archivemode == ARCHIVE_READ )
|
|
{
|
|
size_t s;
|
|
char *data;
|
|
|
|
#ifndef NDEBUG
|
|
CheckRead();
|
|
#endif
|
|
#ifdef ARCHIVE_USE_TYPES
|
|
CheckType( ARC_String );
|
|
#endif
|
|
|
|
if ( !fileerror )
|
|
{
|
|
s = ReadSize();
|
|
if ( !fileerror )
|
|
{
|
|
data = new char[ s + 1 ];
|
|
if ( data )
|
|
{
|
|
if ( s )
|
|
{
|
|
readfile.Read( data, s );
|
|
}
|
|
data[ s ] = 0;
|
|
|
|
*string = data;
|
|
|
|
delete [] data;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
#ifndef NDEBUG
|
|
CheckWrite();
|
|
#endif
|
|
#ifdef ARCHIVE_USE_TYPES
|
|
WriteType( ARC_String );
|
|
#endif
|
|
WriteSize( string->length() );
|
|
//gi.FS_Write( string->m_data->data, string->length(), file );
|
|
gi.FS_Write( string->c_str(), string->length(), file );
|
|
}
|
|
}
|
|
|
|
Class * Archiver::ReadObject( void )
|
|
{
|
|
ClassDef *cls;
|
|
Class *obj;
|
|
str classname;
|
|
long objstart;
|
|
long endpos;
|
|
int index;
|
|
size_t size;
|
|
qboolean isent;
|
|
int type;
|
|
|
|
CheckRead();
|
|
|
|
type = ReadType();
|
|
if ( ( type != ARC_Object ) && ( type != ARC_Entity ) )
|
|
{
|
|
FileError( "Expecting %s or %s", typenames[ ARC_Object ], typenames[ ARC_Entity ] );
|
|
}
|
|
|
|
size = ReadSize();
|
|
ArchiveString( &classname );
|
|
|
|
cls = getClass( classname.c_str() );
|
|
if ( !cls )
|
|
{
|
|
FileError( "Invalid class %s.", classname.c_str() );
|
|
}
|
|
|
|
isent = checkInheritance( &Entity::ClassInfo, cls );
|
|
if ( type == ARC_Entity )
|
|
{
|
|
if ( !isent )
|
|
{
|
|
FileError( "Non-Entity class object '%s' saved as an Entity based object.", classname.c_str() );
|
|
}
|
|
|
|
ArchiveInteger( &level.spawn_entnum );
|
|
//
|
|
// make sure to setup spawnflags properly
|
|
//
|
|
ArchiveInteger( &level.spawnflags );
|
|
}
|
|
else if ( isent )
|
|
{
|
|
FileError( "Entity class object '%s' saved as non-Entity based object.", classname.c_str() );
|
|
}
|
|
|
|
ArchiveInteger( &index );
|
|
objstart = readfile.Pos();
|
|
|
|
|
|
obj = ( Class * )cls->newInstance();
|
|
if ( !obj )
|
|
{
|
|
FileError( "Failed to on new instance of class %s.", classname.c_str() );
|
|
}
|
|
else
|
|
{
|
|
obj->Archive( *this );
|
|
}
|
|
|
|
if ( !fileerror )
|
|
{
|
|
endpos = readfile.Pos();
|
|
if ( ( endpos - objstart ) > size )
|
|
{
|
|
FileError( "Object read past end of object's data" );
|
|
}
|
|
else if ( ( endpos - objstart ) < size )
|
|
{
|
|
FileError( "Object didn't read entire data from file" );
|
|
}
|
|
}
|
|
|
|
//
|
|
// register this pointer with our list
|
|
//
|
|
classpointerList.AddObjectAt( index, obj );
|
|
|
|
return obj;
|
|
}
|
|
|
|
void Archiver::ArchiveObject( Class *obj )
|
|
{
|
|
str classname;
|
|
int index;
|
|
size_t size;
|
|
qboolean isent;
|
|
|
|
if ( archivemode == ARCHIVE_READ )
|
|
{
|
|
ClassDef *cls;
|
|
long objstart;
|
|
long endpos;
|
|
int type;
|
|
|
|
CheckRead();
|
|
type = ReadType();
|
|
if ( ( type != ARC_Object ) && ( type != ARC_Entity ) )
|
|
{
|
|
FileError( "Expecting %s or %s", typenames[ ARC_Object ], typenames[ ARC_Entity ] );
|
|
}
|
|
|
|
size = ReadSize();
|
|
ArchiveString( &classname );
|
|
|
|
cls = getClass( classname.c_str() );
|
|
if ( !cls )
|
|
{
|
|
FileError( "Invalid class %s.", classname.c_str() );
|
|
}
|
|
|
|
if ( obj->classinfo() != cls )
|
|
{
|
|
FileError( "Archive has a '%s' object, but was expecting a '%s' object.", classname.c_str(), obj->getClassname() );
|
|
}
|
|
|
|
isent = obj->isSubclassOf( Entity );
|
|
if ( type == ARC_Entity )
|
|
{
|
|
int entnum;
|
|
if ( !isent )
|
|
{
|
|
FileError( "Non-Entity class object '%s' saved as an Entity based object.", classname.c_str() );
|
|
}
|
|
|
|
ArchiveInteger( &entnum );
|
|
( ( Entity * )obj )->SetEntNum( entnum );
|
|
//
|
|
// make sure to setup spawnflags properly
|
|
//
|
|
ArchiveInteger( &level.spawnflags );
|
|
}
|
|
else if ( isent )
|
|
{
|
|
FileError( "Entity class object '%s' saved as non-Entity based object.", classname.c_str() );
|
|
}
|
|
|
|
ArchiveInteger( &index );
|
|
objstart = readfile.Pos();
|
|
|
|
obj->Archive( *this );
|
|
|
|
if ( !fileerror )
|
|
{
|
|
endpos = readfile.Pos();
|
|
if ( ( endpos - objstart ) > size )
|
|
{
|
|
FileError( "Object read past end of object's data" );
|
|
}
|
|
else if ( ( endpos - objstart ) < size )
|
|
{
|
|
FileError( "Object didn't read entire data from file" );
|
|
}
|
|
}
|
|
|
|
//
|
|
// register this pointer with our list
|
|
//
|
|
classpointerList.AddObjectAt( index, obj );
|
|
}
|
|
else
|
|
{
|
|
long sizepos;
|
|
long objstart = 0;
|
|
long endpos;
|
|
|
|
assert( obj );
|
|
if ( !obj )
|
|
{
|
|
FileError( "NULL object in WriteObject" );
|
|
}
|
|
|
|
isent = obj->isSubclassOf( Entity );
|
|
|
|
CheckWrite();
|
|
if ( isent )
|
|
{
|
|
WriteType( ARC_Entity );
|
|
}
|
|
else
|
|
{
|
|
WriteType( ARC_Object );
|
|
}
|
|
|
|
sizepos = gi.FS_FTell( file );
|
|
size = 0;
|
|
WriteSize( size );
|
|
|
|
classname = obj->getClassname();
|
|
ArchiveString( &classname );
|
|
|
|
if ( isent )
|
|
{
|
|
// Write out the entity number
|
|
ArchiveInteger( &( ( Entity * )obj )->entnum );
|
|
//
|
|
// make sure to setup spawnflags properly
|
|
//
|
|
ArchiveInteger( &( ( Entity * )obj )->spawnflags );
|
|
}
|
|
|
|
// write out pointer index for this class pointer
|
|
index = classpointerList.AddUniqueObject( obj );
|
|
ArchiveInteger( &index );
|
|
|
|
if ( !fileerror )
|
|
{
|
|
objstart = gi.FS_FTell( file );
|
|
obj->Archive( *this );
|
|
}
|
|
|
|
if ( !fileerror )
|
|
{
|
|
endpos = gi.FS_FTell( file );
|
|
size = endpos - objstart;
|
|
gi.FS_FSeek( file, sizepos, FS_SEEK_SET );
|
|
WriteSize( size );
|
|
|
|
if ( !fileerror )
|
|
{
|
|
gi.FS_FSeek( file, endpos, FS_SEEK_SET );
|
|
}
|
|
}
|
|
}
|
|
}
|